Caster



(No Model.) 7 I Q 7 G. J. HELMSTAEDTER.

GASTBR.

No. 439,777. Patentd Nov. 4, 1890.

BY M ATTY'S.

UNITED STATES PATENT OFFICE.

GEORGE J. HELMSTAEDTER, OF NEWARK, NEW JERSEY.

CASTER.

SPECIFICATION forming part of Letters Patent No. 439,777, dated November 4,1890.

Application filed February 25, 1889- $erial No. 301,027. (No model.)

new and useful Improvements in Casters;

and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference beinghad to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification. I

The object of this invention is to secure great strength in a caster-bracket, combined with cheapness and facility of manufacture, and at reduced cost.

The invention consists in the improved castor-bracket having the arrangement and combination of parts substantially as described, and finally embodied in the claim.

Referring to the accompanying drawings, in which like letters of reference indicate corresponding parts in each of the several figures, Figure 1 is a side view of a caster embodying my improvement. Fig. 2 is a rear view of the same, showing the overlapping ends; and Fig. 3 is a plan view of a bracketblank before it is bent into shape.

In said drawings, a represents an ordinary caster-wheel.

b is the bracket for holding the wheel, and c is the pintle riveted or secured in any desired manner to the bracket, The bracket 1) is formed from a blank made from a metal sheet or plate out in the form shown in Fig. 3.

In the projecting portions b b of the blank are holes d, in which is fitted a pin 61, on which the wheel turns. Said projecting portions, when the bracket is shaped to receive the wheel a, lie in parallel planes, as indicated in Fig. 2, and are braced at the front 7 by the connection f. At the top of the bracket the portions 1) b, which form the ears or bearings for the roller-pin or other pivotal connections, are braced or firmly held in their parallel relation by the overlapping plates 6 e, which extend oppositely, as indicated in Fig. 2, from the ears or bearings and are held together by the pivot or pintle c, as will be clearly understood.

In constructing the bracket to receive the roller I first form the blank from a single piece of sheet metal in substantially the H shape shown in Fig. 3, the brace fat the center and at each of the sides, a bearing 1) and a top brace e substantially in line. The blank is next bent at right angles on lines m and 01-, giving the bracket something of a hollow or box shape and bracing the ears or bearings b b in two directions. Holes (1 (Z and e e are also formed to receive the pivots c and cl. .The spindle c is then passed through the coinciding holes 0 and securely riveted therein, the overlapping plates being thus firmly united. By this construction I am enabled to produce caster-brackets very rapidly and at greatly-reduced cost and of great strength, as the ends or projections overlapping each other a double thickness of plate is obtained as a support for the pintle c, and the ears I) b, in which the horizontal roller-pin cl has its bearings, are firmly held or braced, so as to resist lateral pressure exerted When the article of furniture to which the caster is attached is forced at right angles to the direction of movement of the roller, as will be understood.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

In a caster, the bracket combining 1 in one integral piece ears b b, overlapping plates 8 e, and the front bracing-connection f, the said ears and overlapping plates being perforated, substantially as and for the purposes set forth.

In testimony that I claim the foregoing I have hereunto set my hand this 23d day of February, 1889.

GEORGE J. HELMSTAEDTER.

Witnesses:

E. L. SHERMAN, OLIVER DRAKE. 

